126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
// For license of this file, see <project-root-folder>/LICENSE.md.
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#ifndef TEXTBROWSERVIEWER_H
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#define TEXTBROWSERVIEWER_H
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#include "gui/webviewers/webviewer.h"
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#include "network-web/adblock/adblockmanager.h"
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#include <QNetworkReply>
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#include <QPixmap>
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#include <QPointer>
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#include <QTextBrowser>
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#include <QTimer>
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class QContextMenuEvent;
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class QResizeEvent;
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class WebBrowser;
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class Downloader;
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class TextBrowserViewer;
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class RSSGUARD_DLLSPEC TextBrowserDocument : public QTextDocument {
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Q_OBJECT
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public:
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explicit TextBrowserDocument(TextBrowserViewer* parent = nullptr);
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protected:
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virtual QVariant loadResource(int type, const QUrl& name);
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private:
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QPointer<TextBrowserViewer> m_viewer;
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};
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class RSSGUARD_DLLSPEC TextBrowserViewer : public QTextBrowser, public WebViewer {
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Q_OBJECT
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Q_INTERFACES(WebViewer)
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public:
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explicit TextBrowserViewer(QWidget* parent = nullptr);
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virtual ~TextBrowserViewer();
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QVariant loadOneResource(int type, const QUrl& name);
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virtual QSize sizeHint() const;
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virtual void bindToBrowser(WebBrowser* browser);
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virtual void findText(const QString& text, bool backwards);
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virtual void setUrl(const QUrl& url);
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virtual void setHtml(const QString& html, const QUrl& base_url = {});
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virtual void setReadabledHtml(const QString& html, const QUrl& base_url = {});
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virtual QString html() const;
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virtual QUrl url() const;
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virtual void clear();
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virtual void loadMessages(const QList<Message>& messages, RootItem* root);
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virtual PreparedHtml htmlForMessages(const QList<Message>& messages, RootItem* root) const;
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virtual double verticalScrollBarPosition() const;
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virtual void setVerticalScrollBarPosition(double pos);
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virtual void applyFont(const QFont& fon);
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virtual qreal zoomFactor() const;
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virtual void setZoomFactor(qreal zoom_factor);
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bool resourcesEnabled() const;
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void setResourcesEnabled(bool enabled);
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protected:
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virtual ContextMenuData provideContextMenuData(QContextMenuEvent* event) const;
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virtual void contextMenuEvent(QContextMenuEvent* event);
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virtual void resizeEvent(QResizeEvent* event);
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virtual void wheelEvent(QWheelEvent* event);
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private slots:
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void enableResources(bool enable);
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void downloadLink();
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void onAnchorClicked(const QUrl& url);
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void reloadHtmlDelayed();
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void downloadNextNeededResource();
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void resourceDownloaded(const QUrl& url,
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QNetworkReply::NetworkError status,
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int http_code,
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const QByteArray& contents = QByteArray());
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signals:
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void reloadDocument();
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void pageTitleChanged(const QString& new_title);
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void pageUrlChanged(const QUrl& url);
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void pageIconChanged(const QIcon&);
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void linkMouseHighlighted(const QUrl& url);
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void loadingStarted();
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void loadingProgress(int progress);
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void loadingFinished(bool success);
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void newWindowRequested(WebViewer* viewer);
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void closeWindowRequested();
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private:
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PreparedHtml prepareLegacyHtmlForMessage(const QList<Message>& messages, RootItem* selected_item) const;
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void setHtmlPrivate(const QString& html, const QUrl& base_url);
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BlockingResult blockedWithAdblock(const QUrl& url);
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QString decodeHtmlData(const QByteArray& data, const QString& content_type) const;
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private:
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QScopedPointer<Downloader> m_downloader;
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bool m_resourcesEnabled;
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QList<QUrl> m_neededResources; // All URLs here must be resolved.
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Downloader* m_resourceDownloader;
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QThread* m_resourceDownloaderThread;
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// Contains list of precisely sized images per each url.
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QMap<QUrl, QMap<int, QByteArray>> m_loadedResources; // All URLs here must be resolved.
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QPixmap m_placeholderImage;
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QPixmap m_placeholderImageError;
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QUrl m_currentUrl;
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QString m_currentHtml;
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QPointer<RootItem> m_root;
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QFont m_baseFont;
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qreal m_zoomFactor = 1.0;
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QScopedPointer<QAction> m_actionEnableResources;
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QScopedPointer<QAction> m_actionDownloadLink;
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QScopedPointer<TextBrowserDocument> m_document;
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QPoint m_lastContextMenuPos;
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};
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#endif // TEXTBROWSERVIEWER_H
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